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New PDF release: Chemistry of Heterocyclic Compounds: The Purines, Supplement

By John H.; Wiley; Lister, John Henry; John Wiley & Sons Wiley-Interscience Lister

ISBN-10: 0470187948

ISBN-13: 9780470187944

ISBN-10: 0471080942

ISBN-13: 9780471080947

Advent to the Purines (H1).

Synthesis from Pyrimidines.

Purines Syntheses from Imidazoles and different Precursors (H 91).

Purine and C -Alkyl, C -Aryl and N -Alkyl Derivatives (H 117).

Halogenopurines (H 135).

Oxo-(Hydroxy-) and Alkoxypurines (H 203).

Thioxo- and Selenoxopurines and Derivatives (H 269).

The Amino (and Amino-Oxo) Purines (H 309).

The Purine Carboxylic Acids and similar Derivatives (H 367).

Nitro-, Nitroso-, and Arylazopurines (H 401).

Purine-N -Oxides (H 409).

The diminished Purines (H 427).

Enlarged Purine-Containing buildings (New).

The Spectra of Purines (H 507).

Systematic Tables of straightforward Purines.

References.

Index.Content:
Chapter I creation to the Purines (H1) (pages 1–20):
Chapter II Synthesis from Pyrimidines (pages 21–60):
Chapter III Purines Syntheses from Imidazoles and different Precursors (H91) (pages 61–82):
Chapter IV Purine and C?Alkyl, C?Aryl, and N?Alkyl Derivatives (H117) (pages 83–98):
Chapter V Halogenopurines (H135) (pages 99–132):
Chapter VI Oxo?(Hydroxy?) and Alkoxypurines (H203) (pages 133–178):
Chapter VII Thioxo? and Selenoxopurines and Derivatives (H269) (pages 179–212):
Chapter VIII The Amino (and Amino?Oxo)Purines (H309) (pages 213–282):
Chapter IX The Purine Carboxylic Acids and comparable Derivatives (H367) (pages 283–302):
Chapter X Nitro?, Nitroso?, and Arylazopurines (H401) (pages 303–306):
Chapter XI Purine?N?Oxides (H409) (pages 307–324):
Chapter XII The lowered Purines (H427) (pages 325–336):
Chapter XIII Enlarged Purine?Containing buildings (New) (pages 337–346):
Chapter XIV The Spectra of Purines (H507) (pages 347–384):
Chapter XV Systematic Tables of straightforward Purines (pages 385–424):

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Extra info for Chemistry of Heterocyclic Compounds: The Purines, Supplement 1, Volume 54

Sample text

C. D. E. F. G. 2. 3. 4. 5. . . . . . . . . . 22 Cyclization with Formic Acid (H33) . . . . . . . . . . . . . . Cyclization with Dithioformic Acid (H38) . . . . . . . . . . . . Cyclization with Other Carboxylic Acids (H41) . . . . . . . . . . . Cyclization with Acid Anhydrides (H44) . . . . . . . . . . . . Cyclization with Acid Chlorides (H47) . . . . . . . . . . . . . Cyclization with Orthoesters and Diethoxymethyl Acetate (H50) .

It is postulated that 63 arises from attack by a second molecule of thiourea on the 5-thioureidopyrimidine initially formed, displacing the 4-amino group; the product (64)then cyclizes with elimination of g ~ a n i d i n e . ~ ' ~ 59 60 61 0. Cyclizationwith Cyanates, lsocyanates and Derivatives (H61) Under reflux conditions methyl isocyanate and 4,5-diamino-l,2,3,6-tetrahydro-2-oxo-6-thioxopyrimidinein pyridine (3 h) give the corresponding 5-(N- * Removal of an N-methyl group during a ring closure of this type is well documented ( H a ) .

Syntheses from 4-Amino-5-nitro- and 4-Amino-5-nitroso-pyrimidines (H72) and from 4-Amino-5-azopyrimidines (New) . . . . . . . . . . . . . A. Cyclization Involving Reduction of a 5-Nitro or 5-Nitroso Group(K12) . . . . B. Cyclization through Cyclodehydration (H74) . . . . . . . . . . . C . Cyclization Involving Reaction of a 5-AZO Group ( H 7 3 ) . . . . . . . . Syntheses from 5-Amino-4-oxopyrimidines ( M 6 ) . . . . . . . . . . . Syntheses from 4-Amino-5-unsubstituted-pyrimidines (ff78) .

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Chemistry of Heterocyclic Compounds: The Purines, Supplement 1, Volume 54 by John H.; Wiley; Lister, John Henry; John Wiley & Sons Wiley-Interscience Lister


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